I also had 150mci on 5/30. On 5/31 I woke up with what felt and sounded like croupy cough. Somehow, the lemon drops seemed to help. I woke up coughing for each of the next 3 days, but each day it had lessened. Because I seemed to have no other symptoms (no nasal or head congestion!), I assumed it was RAI related. Also developed the white tongue along with loss of taste on 6/7. All of a sudden my tongue felt too big for my mouth. I could no longer taste the lemon drops, but the lemon drop HURT to be in my mouth. try to be gentle with your tongue. If you are "cleaning" it with the toothbrush, don't be too rough. An ibuprofen did wonders for my pain and it seems to be subsiding, but it is still white along the sides. I am also trying to drink more water and that seems to help a bit, too. Each day is a new adventure!
good luck to all :)